Cleaning equipment and rolling brush device

Abstract

The invention provides cleaning equipment and a rolling brush device.The cleaning equipment comprises the rolling brush device, a collecting device and a negative pressure device, the rolling brush device comprises a shell, a first rolling brush and a second rolling brush, at least part of a suction opening is formed in the shell, and the first rolling brush and the second rolling brush are configured to rotate relative to the shell; the collecting device is communicated with the suction port; the negative pressure device is used for driving the to-be-cleaned object to enter the rolling brush device through the suction port and output to the collecting device from the rolling brush device; wherein one end of the first rolling brush and one end of the second rolling brush are suspended to form free ends; the free end of the first rolling brush and the free end of the second rolling brush are arranged in a spaced mode, the first rolling brush and the second rolling brush each comprise a roller body and a glue brush, and the glue brushes are connected with the roller bodies. According to the cleaning equipment and the rolling brush device, the probability that hair is easily wound on the rolling brush can be reduced or avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to a cleaning equipment and a roller brush device. Background Art

[0002] Cleaning equipment usually includes a roller brush device. When the roller brush of the roller brush device rotates, it can drive the garbage or hair on the surface to be cleaned to move, so that the cleaning equipment can adsorb and clean the garbage or hair. However, in the related cleaning equipment, the roller brush is extremely easy to entangle hair, which easily leads to poor subsequent rotation effect of the roller brush, and even problems such as the roller brush being stuck. It is necessary to regularly clean and maintain the roller brush device. Summary of the Invention

[0003] The present invention provides a cleaning equipment and a roller brush device, aiming to reduce or avoid the probability that the roller brush is easily entangled with hair.

[0004] An embodiment of the present invention provides a cleaning equipment, including:

[0005] A roller brush device, including a housing, a first roller brush and a second roller brush. At least part of a suction port is formed in the housing, and the first roller brush and the second roller brush are respectively configured to rotate relative to the housing;

[0006] A collection device, communicating with the suction port;

[0007] A negative pressure device, configured to drive an object to be cleaned to enter the roller brush device through the suction port and output from the roller brush device to the collection device;

[0008] Wherein, one ends of the first roller brush and the second roller brush are both suspended to form free ends; the free ends of the first roller brush and the second roller brush are spaced apart. The first roller brush and the second roller brush both include a roller body and a rubber brush, and the rubber brush is connected to the roller body.

[0009] Another embodiment of the present invention provides a roller brush device, including:

[0010] A housing;

[0011] A first roller brush, configured to be able to rotate relative to the housing;

[0012] A second roller brush, configured to be able to rotate relative to the housing;

[0013] Wherein, one ends of the first roller brush and the second roller brush are both suspended to form free ends; the free ends of the first roller brush and the second roller brush are spaced apart. The first roller brush and the second roller brush both include a roller body and a rubber brush, and the rubber brush is connected to the roller body.

[0014] The cleaning device and the roller brush device provided by the embodiments of the present invention have one end of the first roller brush and the second roller brush both suspended to form free ends; the free ends of the first roller brush and the second roller brush are arranged at intervals. When the negative pressure device works, the air flow velocity and / or air flow rate at the gap are relatively large. Therefore, the air flow at the gap can attract hair or garbage to approach or move towards the gap; the hair on the first roller brush and / or the second roller brush can move towards the gap during the rotation of the roller brush and quickly detach from the first roller brush and / or the second roller brush. The hair or the object to be cleaned at the gap is discharged from the gap under the action of the air flow and collected into the collection device, so that it is convenient to collect hair or garbage through the gap. By reasonably setting the structure of the roller brush device, the overall cleaning area of the roller brush device can be increased, the cleaning effect of the first roller brush and / or the second roller brush can be ensured, and the probability that hair is easily wound around the first roller brush and / or the second roller brush can be effectively reduced or avoided.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure of the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of at least part of the structure of a cleaning device provided by an embodiment of the present invention, which shows a roller brush device, a collection device, and a negative pressure device;

[0018] Figure 2 is a partial cross-sectional view of at least part of a cleaning device provided by an embodiment of the present invention, which shows a roller brush device and a collection device;

[0019] Figure 3 is a partial structure diagram of a cleaning device provided by an embodiment of the present invention, which shows a roller brush device;

[0020] Figure 4 is a partial cross-sectional view of at least part of a cleaning device provided by an embodiment of the present invention;

[0021] Figure 5 is a partial cross-sectional view of a cleaning device provided by an embodiment of the present invention;

[0022] Figure 6 is a partial cross-sectional view of a cleaning device provided by an embodiment of the present invention;

[0023] Figure 7(A) is a schematic diagram of the suction port provided by an embodiment of the present invention;

[0024] Figure 7(B) is a partial structural schematic diagram of the cleaning device provided by an embodiment of the present invention;

[0025] Figure 8 is a partial cross-sectional view of the roller brush device provided by an embodiment of the present invention;

[0026] Figure 9 is a schematic diagram of the rubber brush at an angle provided by an embodiment of the present invention;

[0027] Figure 10 is a schematic diagram of the rubber brush at another angle provided by an embodiment of the present invention;

[0028] Figure 11 is a schematic diagram of the rubber brush at yet another angle provided by an embodiment of the present invention;

[0029] Figure 12(A) is a structural schematic diagram of the roller body provided by an embodiment of the present invention;

[0030] Figure 12(B) is a schematic diagram of the first roller brush provided by an embodiment of the present invention;

[0031] Figure 13 is a structural schematic diagram of the cleaning device provided by an embodiment of the present invention;

[0032] Figure 14 is a partial exploded schematic diagram of the cleaning device provided by an embodiment of the present invention.

[0033] Explanation of reference numerals:

[0034] 1000, cleaning device;

[0035] 100, roller brush device;

[0036] 10, housing; 11, suction port; 111, inlet;

[0037] 20, first roller brush; 21, first end; 22, second end; 23, chamfer structure;

[0038] 30, second roller brush; 31, third end; 32, fourth end;

[0039] 41. Roller body; 411. Fitting structure; 4111. First fitting part; 4112. Second fitting part; 412. First shaft section; 413. Second shaft section; 4131. Protruding part; 414. Third shaft section; 42. Rubber brush; 421. Connecting body; 4211. First connecting part; 42111. Limiting structure; 42112. First limiting part; 42113. Second limiting part; 4212. Second connecting part; 42121. Connecting sub - part; 42122. Connecting rib; 422. Rubber strip;

[0040] 50. Gap; 60. Driving mechanism; 61. First driving part; 62. Second driving part; 63. Second connecting part; 71. First connecting part; 72. First bearing; 73. Second bearing;

[0041] 80. Scraper mechanism; 81. Fitting; 82. Scraper strip; 83. Support;

[0042] 200. Collection device; 300. Negative pressure device; 400. Machine body; 501. Moving device; 502. Third connecting part; 503. Fourth connecting part; 600. Power device; 700. Flow - guiding device; 701. Flow - guiding channel; 702. Flow - guiding part; 2000. Surface to be cleaned; 3000. Object to be cleaned. Detailed implementation mode

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0045] It should also be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0046] It should be further understood that the term "and / or" used in the specification of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0047] A cleaning device generally includes a rolling brush device. When the rolling brush of the rolling brush device rotates, it can drive the garbage or hair on the surface to be cleaned to move, so that the cleaning device can adsorb and clean the garbage or hair. However, in the related art cleaning device, due to the presence of the rolling brush, hair, especially hair with a length greater than the circumference of the rolling brush, is easily wound around the rolling brush, resulting in the hair not being smoothly collected into the collection device of the cleaning device, easily causing a poor subsequent rotation effect of the rolling brush, and even causing problems such as the rolling brush being stuck, affecting the cleaning effect of the cleaning device, and requiring regular cleaning and maintenance of the rolling brush device. In the related art, a blade is added at the rolling brush to cut the hair wound around the rolling brush. However, since the contact situation between the hair and the blade is complex and uncontrollable, the cutting effect is not stable, resulting in an unstable cleaning effect of the cleaning device and affecting the user experience.

[0048] For this reason, the embodiments of the present invention provide a cleaning device and a rolling brush device, aiming to reduce or avoid the probability of the rolling brush being easily wound with hair.

[0049] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0050] Please refer to Figure 1 and Figure 2 , the embodiments of the present invention provide a cleaning device 1000 for cleaning an object 3000 to be cleaned on a surface 2000 to be cleaned or an area to be cleaned (please refer to Figure 5 ). Exemplarily, the surface 2000 to be cleaned may include at least one of the following: the ground, the wall surface, the glass, the tabletop, or the surface of other objects (or other components), etc. The area to be cleaned may include at least one of the following: the area of the ground to be cleaned, the surface area of an object (such as glass, etc.), the water area to be cleaned, etc. The object 3000 to be cleaned includes at least one of the following: garbage, hair, dust, stains, sewage.

[0051] Exemplarily, the cleaning device 1000 includes at least one of the following: a cleaning robot, a floor sweeping robot, a floor washing machine, a mopping machine, a vacuum cleaner, a glass cleaning machine, etc. Exemplarily, the cleaning device 1000 may include at least one of the following: an automatic cleaning device 1000 or a handheld cleaning device 1000; the automatic cleaning device 1000 can perform cleaning operations automatically without the operation of the user.

[0052] Please refer to Figures 2 to 4 , in some embodiments, the cleaning device 1000 includes a rolling brush device 100, a collection device 200, and a negative pressure device 300. The rolling brush device 100 includes a housing 10, a first rolling brush 20, and a second rolling brush 30. The housing 10 is formed with at least a partial suction port 11. The first rolling brush 20 and the second rolling brush 30 are respectively configured to rotate relative to the housing 10; the collection device 200 is communicated with the suction port 11; the negative pressure device 300 is used to drive the object to be cleaned 3000 to enter the rolling brush device 100 through the suction port 11 and output from the rolling brush device 100 to the collection device 200. Wherein, one end of each of the first rolling brush 20 and the second rolling brush 30 is suspended, and the free end of the first rolling brush 20 and the free end of the second rolling brush 30 are spaced apart. Both the first rolling brush 20 and the second rolling brush 30 include a roller body 41 and a rubber brush 42, and the rubber brush 42 is connected to the roller body 41.

[0053] For the cleaning device 1000 in the above embodiments, since the first rolling brush 20 and the second rolling brush 30 are respectively configured to rotate relative to the housing 10, the free end of the first rolling brush 20 and the free end of the second rolling brush 30 are spaced apart, and the negative pressure device 300 is used to drive the object to be cleaned 3000 to be transported to the collection device 200 through the suction port 11. The object to be cleaned 3000 on the surface to be cleaned 2000 can be transported to the suction port 11 under the action of at least one of the air flow, the first rolling brush 20, and the second rolling brush 30, and collected at the collection device 200, so as to realize the cleaning of the surface to be cleaned 2000. In addition, since the free end of the first rolling brush 20 and the free end of the second rolling brush 30 are spaced apart, a gap 50 is formed between the free end of the first rolling brush 10 and the free end of the second rolling brush 20 (please refer to Figure 5) When the negative pressure device 300 is operating, the air flow velocity and / or air flow rate at the gap 50 is relatively large. Therefore, the air flow at the gap 50 can attract hair, garbage, and other objects to be cleaned 2000 to approach or move towards this gap 50. The hair on the first roller brush 20 and / or the second roller brush 30 can move towards this gap 50 during the rotation of the first roller brush 20 and the second roller brush 30, and quickly detach from the first roller brush 20 and / or the second roller brush 30. The hair or object to be cleaned 3000 at the gap 50 is discharged from the gap 50 under the action of the air flow and collected into the collection device 200, thus facilitating the collection of hair, garbage, etc. through this gap 50. By reasonably setting the structure of the roller brush device 100, the overall cleaning area of the roller brush device 100 can be increased, the cleaning effect of the first roller brush 20 and / or the second roller brush 30 can be ensured, the probability of hair being easily wound around the first roller brush 20 and / or the second roller brush 30 can be effectively reduced or avoided, and the problems such as the first roller brush 20 and / or the second roller brush 30 being easily stuck due to the object to be cleaned 3000 staying on the first roller brush 20 and the second roller brush 30 during the rotation of the first roller brush 20 and the second roller brush 30 can be avoided. The frequency of the user maintaining the roller brush device 100 is reduced, the working stability of the roller brush device 100 is ensured, and the user experience is improved.

[0054] Exemplarily, when the first roller brush 20 rotates, it can cause the hair wound around the first roller brush 20 to move towards the end of the first roller brush 20. The air flow at the gap 50 between the first roller brush 20 and the second roller brush 30 can attract the hair of the first roller brush 20 to move towards the gap 50, so that the hair detaches from the first roller brush 20, effectively avoiding the winding or knotting of hair on the first roller brush 20, improving the cleaning effect of the cleaning device 1000, and further enhancing the user experience. It can also protect the first roller brush 20 to a certain extent. Similarly, when the second roller brush 30 rotates, it can cause the hair wound around the second roller brush 30 to move towards the end of the second roller brush 30. The air flow at the gap 50 between the first roller brush 20 and the second roller brush 30 can attract the hair of the second roller brush 30 to move towards the gap 50, so that the hair detaches from the second roller brush 30, effectively avoiding the winding or knotting of hair on the second roller brush 30, improving the cleaning effect of the cleaning device 1000, and further enhancing the user experience. It can also protect the second roller brush 30 to a certain extent.

[0055] It can be understood that in the single roller brush scheme, the roller brush device is only provided with one roller brush. The free end of the single roller brush is suspended, and the free end of the single roller brush and the housing are spaced apart along the first direction or the axial direction of the single roller brush to form a gap. When the cleaning device in the single roller brush scheme performs cleaning operations, it is difficult for relatively large garbage particles to pass from the single roller brush and the housing along the second direction ( Figure 4The spaced area in the Y direction (in the figure) is passed through. Therefore, for the object to be cleaned (such as large-particle garbage or hair wound around a single roller brush) that needs to be sucked to the gap to be cleaned and collected, the distance for the object to be cleaned near the end of the single roller brush away from the gap to move to the gap in the first direction is the first movement distance, and this first movement distance is close to the length of the entire suction port. The free end of the first roller brush 10 of the roller brush device 100 in this embodiment is spaced from the free end of the second roller brush 20 to form a gap 50. The distance for the object to be cleaned 3000 near the end of the first roller brush 20 away from the gap 50 to move to the gap 50 in the first direction is the second movement distance. The second movement distance is less than or equal to the length of the suction port 11 minus the length of the first roller brush 20 or the length of the second roller brush 30 (for example, the second movement distance is less than half of the length of the suction port 11). Therefore, compared with the single roller brush solution with the same suction port length, in the case of achieving the same cleaning effect, since the first movement distance is greater than the second movement distance, the suction force required for the cleaning device 1000 in this embodiment is smaller, and the working power of the negative pressure device 300 of the cleaning device 1000 in this embodiment is smaller than that of the negative pressure device of the cleaning device 1000 with the single roller brush solution, reducing the power consumption of the negative pressure device 300; in addition, compared with the single roller brush solution, since the first movement distance is greater than the second movement distance, when cleaning the object to be cleaned 3000 with larger particles, the wear of the object to be cleaned 3000 on the first roller brush 20 or the second roller brush 30 in this embodiment is relatively reduced, thereby extending the service life of the first roller brush 20 and the second roller brush 30 to a certain extent. In addition, compared with the single roller brush solution, the roller brush device 100 in this embodiment includes the first roller brush 20 and the second roller brush 30, and the overall structure of the roller brush device 100 is more stable in terms of force, improving the reliability of the roller brush device 100. Exemplarily, the length of the suction port 11 refers to the length of the suction port 11 in the first direction. Exemplarily, the first direction is, for example, Figure 4 the X direction in the figure. Exemplarily, the first direction is parallel to the rotation axis of the first roller brush 20 or the rotation axis of the second roller brush 30.

[0056] In addition, compared with the solution where both the first roller brush 20 and the second roller brush 30 include brush bristles, since the first roller brush 20 and the second roller brush 30 in this embodiment both include rubber brushes 42, the rubber brushes 42 are not easily wound with hair; the cleaning strength is greater, and it can well clean the object to be cleaned 3000 with a larger volume or larger particles (such as small gravel, etc.), and can reduce or avoid the problem that the roller brush is stuck by the object to be cleaned 3000 with large particles or large volume, improving the user experience.

[0057] Exemplarily, the suction port 11 includes: a cavity or a spaced area formed by the cooperation of the housing 10, the first roller brush 20, and the second roller brush 30. Please refer to Figure 4, for example, the suction port 11 includes an interval area 11a between the first roller brush 20 and the housing 10, an interval area 11b between the second roller brush 30 and the housing 10, and the above-mentioned gap 50.

[0058] Please refer to Figure 5 , exemplarily, the cleaning device 1000 can clean the object 3000 to be cleaned on the surface 2000 to be cleaned or in the area to be cleaned. When the negative pressure device 300 is operating, the object 3000 to be cleaned on the surface 2000 to be cleaned can enter the suction port 11 from the inlet 111 of the suction port 11 and be discharged from the roller brush device 100 to the collection device 200.

[0059] It can be understood that when the negative pressure device 300 is operating, the object 3000 to be cleaned can be discharged from the housing 10 after passing through at least one of the interval area 11a between the first roller brush 20 and the housing 10, the interval area 11b between the second roller brush 30 and the housing 10, and the above-mentioned gap 50, and then enter the collection device 200, so as to clean and collect the object 3000 to be cleaned.

[0060] Exemplarily, the collection device 200 includes a dust collection member, such as a dust collection box, for collecting dust, garbage, etc. In other embodiments, the collection device 200 can also be other structures, such as a liquid collection member, for collecting sewage, etc.

[0061] It can be understood that the negative pressure device 300 is used to generate negative pressure to suck the object 3000 to be cleaned outside the cleaning device 1000 into the collection device 200 through the suction port 11. In some embodiments, the negative pressure device 300 includes at least one of the following: a blower, an air pump, a vacuum pump, etc.

[0062] Exemplarily, the negative pressure device 300 is communicated with the collection device 200. In this way, when the negative pressure device 300 is operating, the object 3000 to be cleaned on the surface 2000 to be cleaned can enter the suction port 11 under the action of at least one of the air flow, the first roller brush 20 and the second roller brush 30, and be output from the roller brush device 100 to the collection device 200.

[0063] Exemplarily, the negative pressure device 300 is installed on the collection device 200. In other embodiments, the negative pressure device 300 can also be installed on other components of the cleaning device 1000, such as installed on the body 400 of the cleaning device 1000 (please refer to Figure 13 ) etc.

[0064] Please refer to Figure 4, in some embodiments, the first roller brush 20 and the second roller brush 30 are at least partially disposed within the housing 10 to reduce the occupied space of the roller brush device 100 and reduce the damage to external objects when the first roller brush 20 and the second roller brush 30 are operating. To some extent, it can also reduce the damage or collision of external objects to the first roller brush 20 and the second roller brush 30. Exemplarily, at least a part of the first roller brush 20 and at least a part of the second roller brush 30 can extend out of the suction port 11 so that the first roller brush 20 and the second roller brush 30 can contact the surface to be cleaned 2000 or the object to be cleaned 3000 on the surface to be cleaned 2000, thereby lifting the object to be cleaned 3000 on the surface to be cleaned 2000 and improving the cleaning efficiency and cleaning ability of the cleaning device 1000.

[0065] Please refer to Figure 4 , in some embodiments, the first roller brush 20 and the second roller brush 30 are arranged along the rotation axis of the first roller brush 20 or the rotation axis of the second roller brush 30, so that there is a gap 50 between the free end of the first roller brush 20 and the free end of the second roller brush 30 in the arrangement direction of the first roller brush 20 and the second roller brush 30. Exemplarily, the rotation axis is the direction of the rotation center axis of the first roller brush 20 or the second roller 30, or the rotation axis is parallel to the rotation center axis of the first roller brush 20 or the second roller 30.

[0066] In some embodiments, the arrangement direction of the first roller brush 20 and the second roller brush 30 is parallel or coincident with the first direction. Exemplarily, the first direction is parallel or coincident with the axis of the first roller brush 20 or the axis of the second roller brush 30. Exemplarily, the first direction is parallel or coincident with the axis of the roller body 41 of the first roller brush 20 or the axis of the roller body 41 of the second roller brush 30. Exemplarily, the first direction intersects but is not perpendicular to the axis of the roller body 41 of the first roller brush 20. Thus, the hair wound around the first roller brush 20 can move along the axis of the first roller brush 20 towards the gap 50 under the action of the airflow at the gap 50 and the first roller brush 20, so that the hair disengages from the first roller brush 20 at the gap 50; the hair wound around the second roller brush 30 can move along the axis of the second roller brush 30 towards the gap 50 under the action of the airflow at the gap 50 and the second roller brush 30, so that the hair disengages from the second roller brush 30.

[0067] Exemplarily, the first direction is as Figure 4 the X direction in

[0068] Please refer to Figure 4 , in some embodiments, the free end of the first roller brush 20 and the free end of the second roller brush 30 are spaced apart in the first direction to form a gap 50.

[0069] Please refer to Figure 4, in some embodiments, the roller body 41 of the first brush roll 20 and the roller body 41 of the second brush roll 30 are arranged at intervals along the arrangement direction of the first brush roll 20 and the second brush roll 30, and the rubber brush 42 of the first brush roll 20 and the rubber brush 42 of the second brush roll 30 are arranged at intervals along the arrangement direction of the first brush roll 20 and the second brush roll 30. The roller body 41 of the first brush roll 20 and the roller body 41 of the second brush roll 30 are arranged at intervals, and the rubber brush 42 of the first brush roll 20 and the rubber brush 42 of the second brush roll 30 are arranged at intervals. In this way, when the first brush roll 20 and the second brush roll 30 rotate, the hair wound around the first brush roll 20 and / or the second brush roll 30 can move to the gap 50 under the action of the airflow in the gap 50 and at least one of the first brush roll 20 and the second brush roll 30, and can be separated from the first brush roll 20 or the second brush roll 30. The hair separated from the first brush roll 20 or the second brush roll 30 can be quickly transported to the collection device 200 under the action of the airflow.

[0070] Please refer to Figure 4 , exemplarily, the roller body 41 of the first brush roll 20 and the roller body 41 of the second brush roll 30 are arranged at intervals along the first direction, and the rubber brush 42 of the first brush roll 20 and the rubber brush 42 of the second brush roll 30 are arranged at intervals along the first direction, so that a gap 50 is formed between the first brush roll 20 and the second brush roll 30. In this way, the hair wound around the first brush roll 20 (or the second brush roll 30) can move to the gap 50 under the action of the airflow at the gap 50 and the first brush roll 20 (or the second brush roll 30), and can be completely separated from the first brush roll 20 (or the second brush roll 30) at the gap 50. Exemplarily, the roller body 41 of the first brush roll 20 and the roller body 41 of the second brush roll 30 are arranged at intervals along the axial direction of the first brush roll 20 or the axial direction of the second brush roll 30, and the rubber brush 42 of the first brush roll 20 and the rubber brush 42 of the second brush roll 30 are arranged at intervals along the axial direction of the first brush roll 20 or the axial direction of the second brush roll 30, so that a gap 50 is formed between the first brush roll 20 and the second brush roll 30. In this way, the hair wound around the first brush roll 20 (or the second brush roll 30) can move to the gap 50 under the action of the airflow at the gap 50 and the first brush roll 20 (or the second brush roll 30), and can be completely separated from the first brush roll 20 (or the second brush roll 30) at the gap 50.

[0071] The shape of the gap 50 can be set according to actual needs. In some embodiments, the gap 50 includes a gradually changing gap or a uniform gap. Please refer to Figure 6, Exemplarily, the second end 22 of the first roller brush 20 and the fourth end 32 of the second roller brush 30 are spaced apart and arranged in parallel, so that the gap 50 between the second end 22 of the first roller brush 20 and the fourth end 32 of the second roller brush 30 includes a uniform gap. Exemplarily, the spacing distance between the second end 22 of the first roller brush 20 and the fourth end 32 of the second roller brush 30 in the first direction gradually increases or gradually decreases in the second direction, so that the gap 50 formed by the spacing between the second end 22 of the first roller brush 20 and the fourth end 32 of the second roller brush 30 includes a tapered gap. Exemplarily, the second direction is perpendicular to the first direction. Exemplarily, the second direction is as Figure 4 shown by the Y direction in Figure 4 . Exemplarily, the second direction is perpendicular to the first direction, and the second direction is perpendicular to

[0072] Please refer to Figure 6 , in some embodiments, the cleaning device 1000 further includes a driving mechanism 60. The driving mechanism 60 is connected to the housing 10, and the driving mechanism 60 is drivingly connected to the first roller brush 20 and the second roller brush 30. The driving mechanism 60 can provide driving force for the first roller brush 20 and the second roller brush 30, so that the first roller brush 20 and the second roller brush 30 can rotate.

[0073] Please refer to Figure 6 , in some embodiments, the first roller brush 20 has opposite first end 21 and second end 22, the second roller brush 30 has opposite third end 31 and fourth end 32, the first end 21 and the third end 31 are respectively drivingly connected to the driving mechanism 60, the second end 22 and the fourth end 32 are respectively the free ends of the first roller brush 20 and the second roller brush 30, and the second end 22 and the fourth end 32 are spaced apart to form a gap 50. The object to be cleaned 3000 can be conveyed to the collection device 200 through the gap 50 between the second end 22 and the fourth end 32; the hair on the first roller brush 20 and / or the second roller brush 30 can move towards the gap 50 during the rotation of the first roller brush 20 and the second roller brush 30 and quickly detach from the first roller brush 20 and / or the second roller brush 30. The hair or the object to be cleaned 3000 at the gap 50 can be discharged from the roller brush device 100 to the collection device 200 under the action of air flow, thereby reducing or avoiding the probability that hair and the like are easily wound or retained on the first roller brush 20 and / or the second roller brush 30, and ensuring that the first roller brush 20 and the second roller brush 30 can rotate normally to ensure that the roller brush device 100 has a good cleaning effect.

[0074] Please refer to Figure 6In some embodiments, the first roller brush 20 has a first end 21 and a second end 22 relative to each other, the second roller brush 30 has a third end 31 and a fourth end 32 relative to each other, the second end 22 and the fourth end 32 are respectively the free ends of the first roller brush 20 and the second roller brush 30, the first end 21 and the third end 31 are respectively transmission connected to the driving mechanism 60, and the spacing distance between the first end 21 and the third end 31 along the axial direction of the first roller brush 20 is greater than the spacing distance between the second end 22 and the fourth end 32 along the axial direction of the first roller brush 20. When the negative pressure device 300 is working, the air flow at the gap 50 between the second end 22 and the fourth end 32 has a larger air flow speed relative to other areas of the shell 10 or the suction port 11, so that the hair entangled or trapped on the first roller brush 20 and / or the second roller brush 30 can move toward the gap 50 under the action of at least one of the first roller brush 20, the second roller brush 30 and the air flow at the gap 50, and quickly detach from the first roller brush 20 and / or the second roller brush 30; the hair at the gap 50 can be sucked into the collecting device 200 under the action of the air flow.

[0075] See also Figure 6 In some embodiments, the free end of the first roller brush 20 and the free end of the second roller brush 30 are both arranged corresponding to the middle position of the suction port 11. Exemplarily, the first roller brush 20 has a first end 21 and a second end 22 relative to each other, and the second roller brush 30 has a third end 31 and a fourth end 32 relative to each other, and the second end 22 and the fourth end 32 are respectively the free end of the first roller brush 20 and the free end of the second roller brush 30, and the second end 22 and the fourth end 32 are both arranged corresponding to the middle position of the suction port 11, so that the airflow at the gap 50 has as large a suction force as possible on the first end 21 or the second end 22, so as to ensure that the object 2000 to be cleaned near the first end 21 or the second end 22 can be sucked to the gap 50, thereby achieving cleaning and collection.

[0076] The middle position of the suction port 11 includes any suitable position between the two edges of the contour wall of the suction port 11 along the length direction. Referring to FIG. 7(A), in some embodiments, the contour wall of the suction port 11 has a first edge 111 and a second edge 112 along a first direction, the suction port 11 has a first position C1 and a second position C2 along the first direction, a straight line m1 passing through the first position C1 is perpendicular to the first direction, and a straight line m2 passing through the second position C2 is perpendicular to the first direction; the middle position of the suction port 11 includes a position region 113 (including the regions where the straight lines m1 and m2 are located) between the straight line m1 and the straight line m2, wherein the distance L1 between the straight line m1 and the first edge 111 is less than or equal to 1 / 4 of the length L0 of the suction port 11, and the distance L2 between the straight line m2 and the second edge 112 is less than or equal to 1 / 4 of the length L0 of the suction port 11. Exemplarily, the position region 113 is located at or approximately at the exact middle position of the suction port 11 along the first direction to ensure that the air flow at the gap 50 generates as large a suction force as possible at both the first end 21 and the second end 22.

[0077] Exemplarily, the first direction is, for example, Figure 4 the X direction in. Exemplarily, the first direction is the length direction of the suction port 11. Exemplarily, the first direction is parallel to the rotational axis of the first roller brush 20 or the rotational axis of the second roller brush 30.

[0078] Please refer to Figure 6 and FIG. 7(B). In some embodiments, the drive mechanism 60 includes a first drive member 61 and a second drive member 62. The first drive member 61 is connected to the housing 10, and the first drive member 61 is in transmission connection with the roller body 41 of the first roller brush 20; the second drive member 62 is connected to the housing 10, and the second drive member 62 is in transmission connection with the roller body 41 of the second roller brush 30. By driving the roller body 41 of the first roller brush 20 to rotate through the first drive member 61, the rubber brush 42 of the first roller brush 20 is driven to rotate; by driving the roller body 41 of the second roller brush 30 to rotate through the second drive member 62, the rubber brush 42 of the second roller brush 30 is driven to rotate.

[0079] Exemplarily, the first drive member 61 includes at least one of the following: a motor, a cylinder, etc. The first drive member 61 provides a driving force for the first roller brush 20 so that the first roller brush 20 can rotate automatically. Exemplarily, the second drive member 62 includes at least one of the following: a motor, a cylinder, etc. The second drive member 62 provides a driving force for the second roller brush 30 so that the second roller brush 30 can rotate automatically.

[0080] Exemplarily, the first drive member 61 is in transmission connection with the first roller brush 20 through a first transmission structure (not shown in the figure); and / or, the second drive member 62 is in transmission connection with the second roller brush 30 through a second transmission structure (not shown in the figure).

[0081] Please refer to FIG. 7(B). Exemplarily, the first driving member 61 and the second driving member 62 are oppositely disposed on the housing 10.

[0082] Exemplarily, Figure 6 The dashed arrows in [reference numeral] indicate the flow direction of the air flow. Exemplarily, the thick dashed arrow at the gap 50 indicates that the air flow velocity and / or air flow rate of the air flow at the gap 50 is greater than that of the air flow at other positions of the suction port 11.

[0083] In some embodiments, the driving mechanism 60 includes a driving member (not shown in the figure), and the first brush roller 20 and the second brush roller 30 are drivingly connected to the same driving member. Driving the first brush roller 20 and the second brush roller 30 by the same driving member can reduce the number of driving members provided and lower the cost. Exemplarily, the roller body 41 of the first brush roller 20 and the roller body 41 of the second brush roller 30 are rotated by the same driving member, so as to drive the rubber brush 42 of the first brush roller 20 and the rubber brush 42 of the second brush roller 30 to rotate.

[0084] Exemplarily, the driving member includes at least one of the following: a motor, a cylinder, etc. The driving member provides driving force for the first brush roller 20 and the second brush roller 30, so that the first brush roller 20 and the second brush roller 30 can rotate automatically.

[0085] Exemplarily, the driving member is drivingly connected to the first brush roller 20 and the second brush roller 30 through a third transmission structure (not shown in the figure).

[0086] Exemplarily, the first transmission structure, the second transmission structure or the third transmission structure may each include at least one of the following: a gear transmission structure, a link mechanism, a worm transmission mechanism, a cam mechanism, etc. In other embodiments, at least one of the first transmission structure, the second transmission structure and the third transmission structure may also be omitted.

[0087] Exemplarily, the first brush roller 20 and the second brush roller 30 may rotate synchronously or non-synchronously, and this is not limited herein.

[0088] In some embodiments, the rubber brush 42 is detachably connected to the roller body 41. In this way, the rubber brush 42 and the roller body 41 are convenient to disassemble and assemble, and the rubber brush 42 is convenient to replace. After the rubber brush 42 reaches the upper limit of use, only the rubber brush 42 needs to be replaced, and there is no need to replace the entire brush roller or the brush roller device 100, which reduces the production and processing cost and the user's usage cost.

[0089] It can be understood that the detachable connection manner between the rubber brush 42 and the roller body 41 includes: snap connection, magnetic attraction connection, interference fit connection, screw locking connection, etc.

[0090] Please refer to Figure 8In some embodiments, the cleaning device 1000 further includes a first connecting member 71, the first connecting member 71 is connected to the housing 10, the roller body 41 passes through the first connecting member 71, and the roller body 41 can rotate relative to the first connecting member 71. Figure 8 , exemplarily, a first bearing 72 is provided between the first connecting member 71 and the roller body 41, so that the roller body 41 can rotate relative to the first connecting member 71, and the rotation of the roller body 41 can be more stable. Exemplarily, the first connecting member 71 and the housing 10 are integrally formed; or, the first connecting member 71 and the housing 10 are separately provided, and the connection method between the two includes at least one of the following: snap connection, magnetic connection, interference fit connection, screw locking connection, etc.

[0091] See also Figure 8 In some embodiments, the driving mechanism 60 includes a second connecting member 63, and the second connecting member 63 is directly or indirectly connected to at least one of the first driving member 61 and the second driving member 62, and the second connecting member 63 is connected to the roller body 41. For example, the first driving member 61 and the second driving member 62 are each provided with a second connecting member 63, and the two second connecting members 63 are connected to the first driving member 61 and the second driving member 62 respectively. In some embodiments, at least one of the roller body 41 and the second connecting member 63 is penetrated by the first connecting member 71, so that the second connecting member 63 can be connected to the roller body 41. Exemplarily, the second connecting member 63 is penetrated by the first connecting member 71, and the second connecting member 63 can rotate relative to the first connecting member 71. Please refer to Figure 8 For example, a second bearing 73 is provided between the second connecting member 63 and the first connecting member 71 so that the second connecting member 63 can rotate relative to the first connecting member 71 and the second connecting member 63 can rotate more smoothly.

[0092] See also Figure 9 In some embodiments, the rubber brush 42 includes a connecting body 421 and a rubber strip 422 , wherein the connecting body 421 is connected to the roller body 41 ; and the rubber strip 422 is protruding from the connecting body 421 .

[0093] See also Figure 10 and Figure 11 In some embodiments, the connecting body 421 includes a first connecting part 4211 and a second connecting part 4212, the first connecting part 4211 is connected to the roller body 41; the second connecting part 4212 is connected to the first connecting part 4211, the second connecting part 4212 is sleeved outside the first connecting part 4211, and the rubber strip 422 is protruded from the second connecting part 4212.

[0094] See also Figure 10 or Figure 11, Exemplarily, the first connecting portion 4211 includes a hollow structure for the roller body 41 to pass through; the second connecting portion 4212 includes a hollow structure for the first connecting portion 4211 to pass through. In this way, the structure of the first brush roller 20 or the second brush roller 30 is compact and occupies a small space.

[0095] In some embodiments, the first connecting portion 4211 and the second connecting portion 4212 are integrally formed. In this way, the processing of the rubber brush 42 is easy and simple, the number of components is reduced, and the assembly efficiency of the brush roller device 100 is improved.

[0096] In some embodiments, the second connecting portion 4212 has flexibility or elasticity. In this way, the rubber brush 42 can well clean the object to be cleaned 3000 with a larger volume or larger particles; when the rubber brush 42 cleans the object to be cleaned 3000 with a larger volume or larger particles, the second connecting portion 4212 can deform to clean the object to be cleaned 3000 to the suction port 11, avoiding the object to be cleaned 3000 with a larger volume or larger particles from jamming the rubber brush 42.

[0097] In some embodiments, the first connecting portion 4211 is detachably connected to the roller body 41. In this way, the disassembly and assembly of the first connecting portion 4211 and the roller body 41 are convenient, and the replacement of the rubber brush 42 is convenient. After the rubber brush 42 reaches the upper limit of use, only the rubber brush 42 needs to be replaced, and there is no need to replace the entire brush roller or the brush roller device 100, reducing the user's usage cost.

[0098] Please refer to Figure 11 and FIG. 12(A). In some embodiments, the first connecting portion 4211 is provided with a limiting structure 42111, and the roller body 41 is provided with a matching structure 411. The limiting structure 42111 and the matching structure 411 are in limiting cooperation to limit the relative movement between the first connecting portion 4211 and the roller body 41, so that the connection between the rubber brush 42 and the roller body 41 is reliable. When the roller body 41 rotates, the rubber brush 42 can rotate following the rotation of the roller body 41. Exemplarily, the cooperation between the limiting structure 42111 and the matching structure 411 can limit the axial relative movement and circumferential relative movement between the first connecting portion 4211 and the roller body 41. Exemplarily, the first connecting portion 4211 can be detachably connected to the roller body 41 through the cooperation between the limiting structure 42111 and the matching structure 411.

[0099] Understandably, for the roller brush in the related art, in order to achieve the purpose that the roller brush is soft enough and not stuck by large particle garbage, the roller brush generally includes a roller body, a middle foam layer and a soft rubber outer layer. Among them, the middle foam layer is first adhered to the roller body by an adhesive bonding method, and then shaped by grinding or other methods to ensure the cylindricity of the outer surface, so as to obtain an intermediate structure. Then, the intermediate structure is coated with glue and inserted into the soft rubber outer layer for bonding. The roller brush with this structure has a complex overall production process, high cost, and once the bonding is completed, any two of the roller body, the middle foam layer and the soft rubber outer layer cannot be disassembled. After the soft rubber outer layer ages or wears, only the whole roller brush can be replaced, and the user cost is high. Through the cooperation of the limiting structure 42111 and the matching structure 411, the present application can realize the detachable connection between the first connecting portion 4211 and the roller body 41. When the glue brush 42 ages or wears, only the glue brush 42 needs to be removed from the roller body 41 and a new glue brush 42 is replaced, without replacing the whole first roller brush 20 or the second roller brush 30; in addition, there is no need to additionally provide a foam layer between the glue brush 42 and the roller body 41, and the production process of the first roller brush 20 or the second roller brush 30 is simple, and the processing cost is relatively low.

[0100] Please refer to Figure 11 and FIG. 12(A). In some embodiments, the limiting structure 42111 includes a first limiting portion 42112, and the matching structure 411 includes a first matching portion 4111. The first limiting portion 42112 and the first matching portion 4111 are in limiting cooperation to limit the circumferential relative movement between the first connecting portion 4211 and the roller body 41. In this way, when the driving mechanism 60 drives the roller body 41 to rotate, the first limiting portion 42112 and the first matching portion 4111 can limit the circumferential relative movement between the glue brush 42 and the roller body 41, providing a guarantee for the roller body 41 to drive the glue brush 42 to rotate.

[0101] In some embodiments, one of the first limiting portion 42112 and the first matching portion 4111 includes a clamping protrusion, and the other includes a clamping groove, and the structures of the first limiting portion 42112 and the first matching portion 4111 are simple.

[0102] Understandably, the numbers of the first limiting portion 42112 and the first matching portion 4111 can both be set according to actual needs. For example, the numbers of the first limiting portion 42112 and the first matching portion 4111 are correspondingly set, and the number of the first limiting portion 42112 includes one, two, three or more.

[0103] Please refer to Figure 8With reference to FIGS. 12(A), in some embodiments, the limiting structure 42111 includes a second limiting portion 42113, and the mating structure 411 includes a second mating portion 4112. The second limiting portion 42113 and the second mating portion 4112 are in limiting cooperation to limit the axial relative movement between the first connecting portion 4211 and the roller body 41. In this way, when the driving mechanism 60 drives the roller body 41 to rotate, the second limiting portion 42113 and the second mating portion 4112 can limit the axial relative movement between the rubber brush 42 and the roller body 41, providing a guarantee for the roller body 41 to drive the rubber brush 42 to rotate.

[0104] In some embodiments, one of the second limiting portion 42113 and the second mating portion 4112 includes a latching protrusion, and the other includes a latching groove. The structures of the second limiting portion 42113 and the second mating portion 4112 are simple.

[0105] The numbers of the second limiting portion 42113 and the second mating portion 4112 can both be set according to actual requirements. For example, the numbers of the second limiting portion 42113 and the second mating portion 4112 are correspondingly set. The number of the second limiting portion 42113 includes one, two, three or more.

[0106] In other embodiments, the limiting structure 42111 and the mating structure 411 can also be any other suitable structures. For example, the limiting structure 42111 includes the inner surface of the first connecting portion 4211. The cross-section of the inner surface of the first connecting portion 4211 includes a non-circular or non-circular arc shape. The mating structure 411 includes the outer surface of the roller body 41. The outer surface of the roller body 41 includes a non-circular or non-circular arc shape. The inner surface and the outer surface are in surface cooperation to limit the relative movement between the first connecting portion 4211 and the roller body 41.

[0107] Please refer to Figure 8 With reference to FIGS. 12(A), in some embodiments, the roller body 41 includes a first shaft section 412 and a second shaft section 413. The first shaft section 412 is connected to the second shaft section 413. The first mating portion 4111 is formed on the first shaft section 412, and the second mating portion 4112 is at least partially formed on the second shaft section 413. The maximum radial dimension of the first shaft section 412 is greater than the radial dimension of the second shaft section 413 to facilitate the detachment of the rubber brush 42 from the second shaft section 413 of the roller body 41. In other embodiments, the maximum radial dimension of the first shaft section 412 can also be less than or equal to the radial dimension of the second shaft section 413.

[0108] Please refer to Figure 8 With reference to FIGS. 12(A), exemplarily, the second shaft section 413 is formed with a protruding portion 4131. The protruding portion 4131 and the first shaft section 412 are axially spaced apart along the roller body 41 to form the second mating portion 4112. The second mating portion 4112 includes a latching groove that is in latching cooperation with the second limiting portion 42113.

[0109] Exemplarily, the first shaft segment 412 and the second shaft segment 413 are coaxially arranged.

[0110] Please refer to Figure 8 and FIG. 12(A). In some embodiments, the roller body 41 further includes a third shaft segment 414, and the third shaft segment 414 is configured to be in driving connection with the driving mechanism 60. Exemplarily, the second shaft segment 413 and the third shaft segment 414 are respectively arranged at opposite ends of the first shaft segment 412. Exemplarily, the third shaft segment 414 is in driving connection with the second connecting member 63.

[0111] Exemplarily, the radial dimension of the third shaft segment 414 is less than or equal to the maximum radial dimension of the first shaft segment 412. Exemplarily, the first shaft segment 412, the second shaft segment 413, and the third shaft segment 414 are coaxially arranged.

[0112] Please refer to Figure 10 and Figure 11 , in some embodiments, the second connecting portion 4212 includes a connecting sub-portion 42121 and a connecting rib 42122. The connecting sub-portion 42121 is sleeved outside the first connecting portion 4211, and the connecting sub-portion 42121 is radially spaced from the first connecting portion 4211. The rubber strip 422 protrudes from the connecting sub-portion 42121; the connecting rib 42122 is connected between the first connecting portion 4211 and the connecting sub-portion 42121. In this structure, in the radially spaced area between the connecting sub-portion 42121 and the first connecting portion 4211, the area other than the connecting rib 42122 is a hollow area, which reduces the amount of raw materials used for the rubber brush 42 and reduces the weight of the rubber brush 42. Exemplarily, in the radially spaced area between the connecting sub-portion 42121 and the first connecting portion 4211, the area other than the connecting rib 42122 is a hollow area, which can also provide a deformation space for the connecting sub-portion 42121 to deform.

[0113] Please refer to Figure 10 and Figure 11 , in some embodiments, the number of the connecting ribs 42122 includes a plurality, such as two, three or more. The plurality of connecting ribs 42122 are circumferentially spaced along the roller body 41. The plurality of connecting ribs 42122 can improve the connection reliability between the connecting sub-portion 42121 and the first connecting portion 4211. The connecting ribs 42122 have a deformation space and can deform to ensure that the rubber brush 42 and the roller body 41 are detachable. When it is necessary to disassemble and assemble the rubber brush 42 and the roller body 41, the connecting ribs 42122 can deform, so that the detachable connection structure between the first connecting portion 4211 and the roller body 41 fails (such as the limiting fit between the limiting structure 42111 and the mating structure 411 fails), thereby achieving the purpose of detachable assembly of the rubber brush 42 and the roller body 41. It can be understood that in other embodiments, the number of the connecting ribs 42122 can also include one.

[0114] Exemplarily, the connecting sub - part 42121 and the connecting rib 42122 are integrally formed.

[0115] Please refer to Figure 10 and Figure 11 , in some embodiments, the shape of the connecting rib 42122 is curved so that the connecting rib 42122 has good deformation ability in the radial direction. In this way, the connecting rib 42122 can be compressed and deformed in the radial direction towards the direction close to the roller body 41, thereby preventing the object to be cleaned 3000 with a larger size or larger particles from jamming the first rotary brush 20 or the second rotary brush 30, and can sweep the object to be cleaned 3000 with a larger size or larger particles towards the suction port 11 through deformation; in addition, the connecting rib 42122 has flexibility or elasticity, which can also enable the reliable connection between the roller body 41 and the rubber brush 42 when assembled in place, and the separation between the roller body 41 and the rubber brush 42 when disassembly is required. For example, the shape of the connecting rib 42122 includes at least one of the following: S - shaped, C - shaped, L - shaped, etc. Exemplarily, the cross - section of the connecting rib 42122 is curved. In other embodiments, the shape of the connecting rib 42122 can also be linear.

[0116] In some embodiments, the connecting rib 42122 has flexibility or elasticity so that the rubber brush 42 has the ability to deform in the radial direction. In this way, the connecting rib 42122 can be compressed and deformed in the radial direction towards the direction close to the roller body 41, thereby preventing the object to be cleaned 3000 with a larger size or larger particles from jamming the first rotary brush 20 or the second rotary brush 30, and can sweep the object to be cleaned 3000 with a larger size or larger particles towards the suction port 11 through deformation; in addition, the connecting rib 42122 has flexibility or elasticity, which can also enable the reliable connection between the roller body 41 and the rubber brush 42 when assembled in place, and the separation between the roller body 41 and the rubber brush 42 when disassembly is required.

[0117] In some embodiments, the radial stiffness of the connecting rib 42122 is less than the radial stiffness of the connecting sub - part 42121 and / or the radial stiffness of the first connecting part 4211, so that the connecting rib 42122 can be compressed and deformed in the radial direction towards the direction close to the roller body 41, thereby preventing the object to be cleaned 3000 with a larger size or larger particles from jamming the first rotary brush 20 or the second rotary brush 30, and can sweep the object to be cleaned 3000 with a larger size or larger particles towards the suction port 11 through deformation. For example, the radial stiffness of the connecting rib 42122 is less than the radial stiffness of the connecting sub - part 42121; or the radial stiffness of the connecting rib 42122 is less than the radial stiffness of the first connecting part 4211.

[0118] The number of the rubber strips 422 can be set according to actual needs. For example, the number of the rubber strips 422 includes one, two or more. Exemplarily, the number of the rubber strips 422 includes a plurality, and the plurality of rubber strips 422 are convexly arranged on the outer surface of the connecting body 421 at intervals.

[0119] Please refer to Figure 9 , in some embodiments, the number of the adhesive strips 422 includes a plurality, and the plurality of adhesive strips 422 are convexly arranged on the connecting body 421 at intervals along the circumferential direction of the roller body 41 to improve the cleaning effect of the first brush roller 20 or the second brush roller 30. Exemplarily, the plurality of adhesive strips 422 are convexly arranged on the connecting body 421 at equal intervals. In some other embodiments, the plurality of adhesive strips 422 may be convexly arranged on the connecting body 421 at intervals along the axial direction of the roller body 41. In still some other embodiments, a part of the plurality of adhesive strips 422 may be convexly arranged on the connecting body 421 at intervals along the axial direction of the roller body 41, and the remaining part of the plurality of adhesive strips 422 may be convexly arranged on the connecting body 421 at intervals along the circumferential direction of the roller body 41.

[0120] The structure and / or shape of the roller body 41 can be set according to actual needs. For example, the roller body 41 includes a straight cylindrical roller body. Another example is that the roller body 41 includes a conical roller body, and in the axial direction extending from the connecting end to the free end of the roller body 41, the cross-sectional area of at least part of the roller body 41 decreases, so that the hair wound around the first brush roller 20 or the second brush roller 30 is more likely to move towards the gap 50 and quickly detach from the first brush roller 20 and the second brush roller 30. Still another example is that the roller body 41 includes a conical roller body, and in the axial direction extending from the connecting end to the free end of the roller body 41, the cross-sectional area of at least part of the roller body 41 increases. It can be understood that the connecting end of the roller body 41 corresponds to the first end 21 of the first brush roller 20 or the third end 31 of the second brush roller 30, the free end of the roller body 41 corresponds to the second end 22 of the first brush roller 20 or the fourth end 32 of the second brush roller 30, and the connecting end of the roller body 41 is used for driving connection with the driving mechanism 60.

[0121] Exemplarily, considering the manufacturing and installation errors, at least one of the free end of the roller body 41, the second end 22 of the first brush roller 20, and the fourth end 32 of the second brush roller 30 droops or inclines towards the surface to be cleaned 200.

[0122] Please refer to FIG. 12(B). Exemplarily, considering the manufacturing and installation errors, the distance between the free end of the roller body 41 and the surface to be cleaned 2000 is less than the distance between the connecting end of the roller body 41 and the surface to be cleaned 2000; and / or, the distance between the second end 22 of the first brush roller 20 and the surface to be cleaned 2000 is less than the distance between the first end 21 of the first brush roller 20 and the surface to be cleaned 2000; and / or, the distance between the fourth end 32 of the second brush roller 30 and the surface to be cleaned 2000 is less than the distance between the third end 31 of the second brush roller 30 and the surface to be cleaned 2000.

[0123] Referring to FIG. 12(B), when at least one of the free end of the roller body 41, the second end 22 of the first brush 20, and the fourth end 32 of the second brush 30 droops or inclines towards the surface 200 to be cleaned, in order to reduce or avoid the free end of the roller body 41, the second end 22 of the first brush 20, or the fourth end 32 of the second brush 30 from contacting the surface 2000 to be cleaned, a chamfer structure 23 is provided at the free end of the roller body 41, the second end 22 of the first brush 20, or the fourth end 32 of the second brush 30.

[0124] Exemplarily, the cross-section of the first brush 20 or the second brush 30 may include at least one of the following: circular, elliptical, polygonal, etc.

[0125] It can be understood that the structure, shape, and / or size of the first brush 20 may be the same as or different from those of the second brush 30, and no limitation is made herein.

[0126] Please refer to Figure 13 , in some embodiments, the cleaning device 1000 includes a body 400, and the brush device 100 is movably connected to the body 400 so that the brush device 100 can move in the vertical direction or a direction perpendicular to the surface 2000 to be cleaned. Exemplarily, the collection device 200 is connected to the body 400.

[0127] Referring to FIG. 7(B), exemplarily, the cleaning device 1000 further includes a moving device 501, and the brush device 100 is movably connected to the body 400 through the moving device 501 so that the brush device 100 can move in the vertical direction or a direction perpendicular to the surface 2000 to be cleaned. Exemplarily, the housing 10 of the brush device 100 is movably connected to the body 400 through the moving device 501.

[0128] Referring to FIG. 7(B), in some embodiments, the moving device 501 is connected to the body 400 through a third connecting member 502, and the moving device 501 is connected to the housing 10 of the brush device 100 through a fourth connecting member 503. Exemplarily, the moving device 501 is hinged or movably connected to the third connecting member 502, and the moving device 501 is hinged or movably connected to the fourth connecting member 503. Exemplarily, the moving device 501 includes at least one of the following: a linkage mechanism, a gear transmission mechanism, a worm and worm gear transmission mechanism, etc.

[0129] Please refer to Figure 13, in some embodiments, the cleaning device 1000 further includes a power device 600. The power device 600 is used to drive the cleaning device 1000 to travel, so that the cleaning device 1000 can clean the surface to be cleaned 2000 or the area to be cleaned. Exemplarily, the power device 600 includes at least one of the following: a motor, a propeller structure, a sail, a drive wheel, etc. Exemplarily, the power device 600 is connected to the fuselage 400, and the power device 600 is used to drive the fuselage 400 or the cleaning device 1000 to travel.

[0130] In some embodiments, the cleaning device 1000 includes a cleaning robot. Exemplarily, when the cleaning robot is working, the cleaning robot is driven by the power device 600 to walk forward on the surface to be cleaned 2000. During the forward movement of the cleaning robot, the surface to be cleaned 2000 is cleaned by the roller brush device 100; the negative pressure device 300 is used to provide negative pressure, so that the object to be cleaned 3000 on the surface to be cleaned 2000 can be sucked to the suction port 11 and conveyed to the collection device 200.

[0131] Please refer to Figure 5 , in some embodiments, the cleaning device 1000 further includes a diversion device 700. The roller brush device 100 is communicated with the collection device 200 through the diversion device 700, and the air flow and / or the object to be cleaned 3000 can be conveyed from the roller brush device 100 or the suction port 11 to the collection device 200 through the diversion device 700. Exemplarily, the diversion device 700 is respectively connected to the housing 10 and the collection device 200. The diversion device 700 is formed with a diversion channel 701. The diversion channel 701 is communicated with the suction port 11, and the diversion channel 701 is communicated with the collection device 200.

[0132] Exemplarily, the diversion device 700 can be integrally formed with the housing 10; and / or, the diversion device 700 is integrally formed with at least part of the collection device 200. Exemplarily, the diversion device 700 can also be separately arranged from the housing 10 (or at least part of the collection device 200), and the two are connected by at least one of the following methods: screw locking connection, adhesive connection, snap connection, magnetic attraction connection, etc.

[0133] Please refer to Figure 6 , exemplarily, the diversion channel 701 gradually narrows along the flowing direction of the air flow, thereby ensuring that the flowing speed and / or air flow rate of the air flow at the gap 50 is greater than the flowing speed and / or air flow rate of other areas of the suction port 11.

[0134] Please refer to Figure 6, Exemplarily, the suction port 11 to the diversion channel 701 gradually narrows along the flow direction of the air flow. The flow direction of the air flow at the gap 50 and the flow direction of the air flow in other areas of the suction port 11 both face the diversion channel 701, thereby ensuring that the flow velocity and / or air flow rate of the air flow at the gap 50 are greater than those of the air flow in other areas of the suction port 11.

[0135] Exemplarily, the dimensional parameters of the gap 50 can be set according to actual needs, as long as the flow velocity and / or air flow rate of the air flow at the gap 50 can be made greater than those of the air flow in other areas of the suction port 11.

[0136] Please refer to Figure 5 , Exemplarily, the diversion device 700 includes a flexible or elastic diversion member 702, so that when the roller brush device 100 moves in the vertical direction or the direction perpendicular to the surface to be cleaned 2000, the diversion device 700 can deform, improving the adaptability of the diversion device 700 or the cleaning device 1000, such that the collection device 200 and the negative pressure device 300 do not need to follow the roller brush device 100 to move in the vertical direction or the direction perpendicular to the surface to be cleaned 2000, protecting the collection device 200 and / or the negative pressure device 300 to a certain extent and improving the use reliability and service life. For example, the diversion device 700 includes a diversion member 702 made of soft rubber or elastic material, etc.

[0137] Please refer to Figure 5 and Figure 14 , In some embodiments, the roller brush device 100 further includes a dirt scraping mechanism 80. The dirt scraping mechanism 80 is connected to the housing 10, and the dirt scraping mechanism 80 is used to scrape the object to be cleaned 3000 on the surface to be cleaned 2000 to reduce or avoid omission of the object to be cleaned 3000. Exemplarily, the suction port 11 includes a cavity or an interval area formed by the housing 10, the first roller brush 20, the second roller brush 30 and the scraping strip 82 in cooperation.

[0138] In order to make the inlet 111 of the suction port 11 close to the surface to be cleaned 2000 while the cleaning device 1000 is not easily stuck by the protrusions (such as floor tile joints) on the surface to be cleaned 2000, a scraping strip 82 is usually provided at the inlet 111 of the housing 10 close to the suction port 11. The distance between the scraping strip 82 and the surface to be cleaned 2000 is very crucial. On the one hand, the closer to the ground, the better the cleaning effect. On the other hand, the greater the interference amount in contact with the surface to be cleaned 2000, the more serious the wear and the greater the noise. To ensure this distance, usually by improving the manufacturing precision of a series of parts from the tire of the driving wheel of the cleaning device 1000 to the scraping strip mounting part to reduce the final cumulative error, or designing a detection and adjustment device to adjust defective products one by one, these solutions all increase the production, manufacturing and assembly costs.

[0139] Please refer toFigure 5 and Figure 14 In some embodiments, the dirt scraping mechanism 80 includes a fitting 81, a scraping strip 82, and a support member 83. The fitting 81 is connected to the housing 10; the scraping strip 82 is connected to the fitting 81, and the scraping strip 82 is used to contact the surface to be cleaned 2000; the support member 83 is connected to the fitting 81, and the support member 83 is used to contact the surface to be cleaned 2000; the support member 83 and the scraping strip 82 are spaced apart along the advancing direction of the cleaning device 1000, and the scraping strip 82 is disposed in front of the support member 83. The dirt scraping mechanism 80 of this embodiment can accurately control the ground clearance height of the scraping strip 82; the ground clearance height of the scraping strip 82 depends only on three components, namely the fitting 81, the scraping strip 82, and the support member 83, and the dimension chain is short, without the need to be associated with the drive wheels of the cleaning device 1000; compared with the solution associated with the scraping strip 82 and the drive wheels of the cleaning device 1000, under the same ground clearance tolerance of the scraping strip 82, the dirt scraping mechanism 80 of this embodiment has lower requirements for manufacturing and assembly.

[0140] Exemplarily, the scraping strip 82 is used to constrain the air flow direction, prevent the object to be cleaned 3000 from being sucked into the suction port 11, and avoid missed sweeping. Exemplarily, the scraping strip 82 is also used to absorb impacts, etc.

[0141] Exemplarily, the scraping strip 82 includes a soft rubber scraping strip or a flexible scraping strip, so that the scraping strip 82 can absorb impacts.

[0142] Exemplarily, the support member 83 may include a support member 83 made of soft rubber or hard rubber material, and the soft rubber or hard rubber material has wear resistance. The support member 83 may also include support wheels to further reduce the friction force.

[0143] In some embodiments, the fitting 81, the scraping strip 82, and the support member 83 are integrally formed and connected to further shorten the dimension chain affecting the ground clearance height of the scraping strip 82, which is beneficial to more accurately control the ground clearance height of the scraping strip 82. Exemplarily, the fitting 81, the scraping strip 82, and the support member 83 can be formed into an integral structure by means of two-color injection molding or overmolding.

[0144] Please refer to Figure 4 , the embodiment of the present invention also provides a roller brush device 100, which includes a housing 10, a first roller brush 20, and a second roller brush 30. The first roller brush 20 is configured to be rotatable relative to the housing 10; the second roller brush 30 is configured to be rotatable relative to the housing 10; wherein, one end of each of the first roller brush 20 and the second roller brush 30 is suspended to form a free end; the free end of the first roller brush 20 and the free end of the second roller brush 30 are spaced apart, and both the first roller brush 20 and the second roller brush 30 include a roller body 41 and a rubber brush 42, and the rubber brush 42 is connected to the roller body 41.

[0145] For the roller brush device 100 of the above embodiments, since the first roller brush 20 and the second roller brush 30 are respectively configured to rotate relative to the housing 10, one ends of the first roller brush 20 and the second roller brush 30 are both suspended, forming free ends; the free ends of the first roller brush 20 and the second roller brush 30 are spaced apart; the negative pressure device 300 is used to drive the object to be cleaned 3000 to be transported to the collection device 200 through the suction port 11, and the object to be cleaned 3000 on the surface to be cleaned 2000 can be transported to the suction port 11 under the action of at least one of the air flow, the first roller brush 20 and the second roller brush 30, and collected at the collection device 200, so as to realize the cleaning of the surface to be cleaned 2000. In addition, since the free ends of the first roller brush 20 and the second roller brush 30 are spaced apart, a gap 50 is formed between the free end of the first roller brush 10 and the free end of the second roller brush 20 (please refer to Figure 5 ); when the negative pressure device 300 is working, the air flow velocity and / or air flow rate of the air flow at the gap 50 is relatively large, so the air flow at the gap 50 can attract hairs or garbage and other objects to be cleaned 3000 to approach or move towards the gap 50; the hairs on the first roller brush 20 and / or the second roller brush 30 can move towards the gap 50 during the rotation of the first roller brush 20 and the second roller brush 30, and quickly detach from the first roller brush 20 and / or the second roller brush 30. The hairs or objects to be cleaned 3000 at the gap 50 are discharged from the gap 50 under the action of the air flow and collected at the collection device 200, so as to facilitate the collection of hairs or garbage through the gap 50. By reasonably setting the structure of the roller brush device 100, the overall cleaning area of the roller brush device 100 can be increased, the cleaning effect of the first roller brush 20 and / or the second roller brush 30 can be ensured, the probability that hairs are easily wound around the first roller brush 20 and / or the second roller brush 30 can be effectively reduced or avoided, and the problems that the hairs are easily wound around the first roller brush 20 and / or the second roller brush 30 or the first roller brush 20 and / or the second roller brush 30 is easily stuck due to the object to be cleaned 3000 staying on the first roller brush 20 and the second roller brush 30 during the rotation of the first roller brush 20 and the second roller brush 30 can be avoided, the frequency of the user maintaining the roller brush device 100 can be reduced, the working stability of the roller brush device 100 is ensured, and the user experience is improved.

[0146] Exemplarily, when the first roller brush 20 rotates, the hair wound around the first roller brush 20 can be moved towards the end of the first roller brush 20. The airflow in the gap 50 between the first roller brush 20 and the second roller brush 30 can attract the hair of the first roller brush 20 to move towards the gap 50, so that the hair detaches from the first roller brush 20, effectively avoiding the winding or knotting of the hair on the first roller brush 20, improving the cleaning effect of the cleaning device 1000, thereby enhancing the user experience, and also being able to protect the first roller brush 20 to a certain extent. Similarly, when the second roller brush 30 rotates, the hair wound around the second roller brush 30 can be moved towards the end of the second roller brush 30. The airflow in the gap 50 between the first roller brush 20 and the second roller brush 30 can attract the hair of the second roller brush 30 to move towards the gap 50, so that the hair detaches from the second roller brush 30, effectively avoiding the winding or knotting of the hair on the second roller brush 30, improving the cleaning effect of the cleaning device 1000, thereby enhancing the user experience, and also being able to protect the second roller brush 30 to a certain extent.

[0147] It can be understood that in the single roller brush solution, the roller brush device is only provided with one roller brush. The free end of the single roller brush is suspended, and the free end of the single roller brush and the housing are spaced apart in the first direction or the axial direction of the single roller brush to form a gap. When the cleaning device in the single roller brush solution performs a cleaning operation, it is difficult for relatively large particles of garbage to pass from the single roller brush and the housing in the second direction ( Figure 4The gap area in the Y direction (in the figure) is passed through. Therefore, for the object to be cleaned (such as large particles of garbage or hair wrapped around a single roller brush) that needs to be sucked to the gap to be cleaned and collected, the distance for the object to be cleaned near the end of the single roller brush away from the gap to move to the gap in the first direction is the first movement distance, and this first movement distance is close to the length of the entire suction port. In this embodiment, the free ends of the first roller brush 10 and the second roller brush 20 of the roller brush device 100 are spaced apart to form a gap 50. The distance for the object to be cleaned 3000 near the end of the first roller brush 20 away from the gap 50 to move to the gap 50 in the first direction is the second movement distance. The second movement distance is less than or equal to the length of the suction port 11 minus the length of the first roller brush 20 or the length of the second roller brush 30 (for example, the second movement distance is less than half of the length of the suction port 11). Therefore, compared with the single roller brush solution with the same suction port length, in the case of achieving the same cleaning effect, since the first movement distance is greater than the second movement distance, the suction force required for the cleaning device 1000 of this embodiment is smaller. The negative pressure device 300 of the cleaning device 1000 of this embodiment has a smaller working power compared to the negative pressure device of the cleaning device 1000 with a single roller brush solution, reducing the power consumption of the negative pressure device 300; in addition, compared with the single roller brush solution, since the first movement distance is greater than the second movement distance, when cleaning a larger particle object to be cleaned 3000, the wear of the object to be cleaned 3000 on the first roller brush 20 or the second roller brush 30 of this embodiment is also relatively reduced, thereby extending the service life of the first roller brush 20 and the second roller brush 30 to a certain extent. In addition, compared with the single roller brush solution, the roller brush device 100 of this embodiment includes a first roller brush 20 and a second roller brush 30, and the overall structure of the roller brush device 100 is more stable in terms of force, improving the reliability of the roller brush device 100. Exemplarily, the length of the suction port 11 refers to the length of the suction port 11 in the first direction. Exemplarily, the first direction is, for example, Figure 4 the X direction in the figure. Exemplarily, the first direction is parallel to the rotation axis of the first roller brush 20 or the rotation axis of the second roller brush 30.

[0148] In addition, compared with the solution where both the first roller brush 20 and the second roller brush 30 include brush bristles, since the first roller brush 20 and the second roller brush 30 of this embodiment both include rubber brushes 42, the rubber brushes 42 are not easily entangled with hair; the cleaning force is greater, and it can well clean the object to be cleaned 3000 with a larger volume or larger particles (such as small gravel, etc.), and can reduce or avoid the problem that the roller brush is stuck by large particle or large volume objects to be cleaned 3000, improving the user experience.

[0149] Exemplarily, the roller brush device 100 includes the roller brush device 100 of any one of the above embodiments.

[0150] In some embodiments, the first roller brush 20 and the second roller brush 30 are arranged along the rotation axis of the first roller brush 20 or the second roller brush 30, such that there is a gap 50 between the free ends of the first roller brush 20 and the second roller brush 30 in the arrangement direction.

[0151] In some embodiments, the roller bodies 41 of the first roller brush 20 and the second roller brush 30 are spaced apart along the arrangement direction of the first roller brush 20 and the second roller brush 30, and the rubber brushes 42 of the first roller brush 20 and the second roller brush 30 are spaced apart along the arrangement direction of the first roller brush 20 and the second roller brush 30.

[0152] In some embodiments, the gap 50 includes a gradually changing gap or a uniform gap; alternatively, the free ends of the first roller brush 20 and the second roller brush 30 are both arranged corresponding to the middle position of the suction port 11.

[0153] In some embodiments, it further includes:

[0154] A driving mechanism 60, connected to the housing 10 and drivingly connected to the first roller brush 20 and the second roller brush 30.

[0155] In some embodiments, the first roller brush 20 has opposite first end 21 and second end 22, the second roller brush 30 has opposite third end 31 and fourth end 32, the first end 21 and the third end 31 are respectively drivingly connected to the driving mechanism 60; the second end 22 and the fourth end 32 are respectively the free ends of the first roller brush 20 and the second roller brush 30, and are spaced apart to form a gap 50.

[0156] In some embodiments, the first roller brush 20 has opposite first end 21 and second end 22, the second roller brush 30 has opposite third end 31 and fourth end 32, the second end 22 and the fourth end 32 are respectively the free ends of the first roller brush 20 and the second roller brush 30, the first end 21 and the third end 31 are respectively drivingly connected to the driving mechanism 60, and the spacing distance between the first end 21 and the third end 31 along the axis direction of the first roller brush 20 is greater than the spacing distance between the second end 22 and the fourth end 32 along the axis direction of the first roller brush 20.

[0157] In some embodiments, the driving mechanism 60 includes:

[0158] A first driving member 61, connected to the housing 10 and drivingly connected to the roller body 41 of the first roller brush 20;

[0159] A second driving member 62, connected to the housing 10 and drivingly connected to the roller body 41 of the second roller brush 30.

[0160] In some embodiments, the driving mechanism 60 includes:

[0161] Driving member: the first roller brush 20 and the second roller brush 30 are transmission-connected to the same driving member.

[0162] In some embodiments, the rubber brush 42 is detachably connected to the roller body 41 .

[0163] In some embodiments, the glue brush 42 includes:

[0164] A connecting body 421 connected to the roller body 41;

[0165] The rubber strip 422 is protruded from the connecting body 421 .

[0166] In some embodiments, connector 421 includes:

[0167] A first connecting portion 4211 connected to the roller body 41;

[0168] The second connection portion 4212 is connected to the first connection portion 4211 and is sleeved outside the first connection portion 4211 . The rubber strip 422 is protruded from the second connection portion 4212 .

[0169] In some embodiments, the first connection portion 4211 and the second connection portion 4212 are integrally formed; and / or the second connection portion 4212 is flexible or elastic.

[0170] In some embodiments, the first connecting portion 4211 is detachably connected to the roller body 41 .

[0171] In some embodiments, the first connection portion 4211 is provided with a limiting structure 42111 , and the roller body 41 is provided with a matching structure 411 . The limiting structure 42111 and the matching structure 411 are limitedly matched to limit the relative movement between the first connection portion 4211 and the roller body 41 .

[0172] In some embodiments, the limiting structure 42111 includes a first limiting portion 42112 , and the matching structure 411 includes a first matching portion 4111 . The first limiting portion 42112 matches with the first matching portion 4111 to limit the circumferential relative movement between the first connecting portion 4211 and the roller body 41 .

[0173] In some embodiments, one of the first limiting portion 42112 and the first matching portion 4111 includes a snap-fit ​​protrusion, and the other includes a snap-fit ​​groove.

[0174] In some embodiments, the limiting structure 42111 includes a second limiting portion 42113 , and the matching structure 411 includes a second matching portion 4112 . The second limiting portion 42113 matches with the second matching portion 4112 to limit the axial relative movement between the first connecting portion 4211 and the roller body 41 .

[0175] In some embodiments, one of the second limiting portion 42113 and the second engaging portion 4112 includes a latching protrusion, and the other includes a latching groove.

[0176] In some embodiments, the second connecting portion 4212 includes:

[0177] A connecting sub-portion 42121, sleeved outside the first connecting portion 4211, radially spaced from the first connecting portion 4211, and a rubber strip 422 protrudes from the connecting sub-portion 42121;

[0178] A connecting rib 42122, connecting the first connecting portion 4211 and the connecting sub-portion 42121.

[0179] In some embodiments, the number of the connecting ribs 42122 includes a plurality, and the plurality of connecting ribs 42122 are circumferentially spaced along the circumferential direction of the roller body 41.

[0180] In some embodiments, the shape of the connecting rib 42122 is curved; and / or, the connecting rib 42122 has flexibility or elasticity.

[0181] In some embodiments, the radial stiffness of the connecting rib 42122 is less than the radial stiffness of the connecting sub-portion 42121 and / or the radial stiffness of the first connecting portion 4211.

[0182] In some embodiments, the number of the rubber strips 422 includes a plurality, and the plurality of rubber strips 422 protrude circumferentially spaced along the circumferential direction of the roller body 41 from the connecting body 421.

[0183] In some embodiments, the roller body 41 includes a straight cylindrical roller body 41; or, the roller body 41 includes a conical roller body 41, and in the axial direction extending from the first end 21 to the second end 22 of the roller body 41, the cross-sectional area of the roller body 41 decreases; or,

[0184] The roller body 41 includes a conical roller body 41, and in the axial direction extending from the first end 21 to the second end 22 of the roller body 41, the cross-sectional area of the roller body 41 increases.

[0185] In some embodiments, the scrubbing device 100 further includes:

[0186] A dirt scraping mechanism 80, connected to the housing 10, for scraping the objects to be cleaned 3000 on the surface to be cleaned 2000, so as to reduce or avoid omission of the objects to be cleaned 3000.

[0187] In some embodiments, the dirt scraping mechanism 80 includes:

[0188] A fitting 81, connected to the housing 10;

[0189] A scraping strip 82, connected to the fitting 81, for contacting the surface to be cleaned 2000;

[0190] The support member 83 is connected to the fitting 81, and the support member 83 is used to contact the surface 2000 to be cleaned; the support member 83 and the squeegee 82 are arranged at intervals along the advancing direction of the cleaning device 1000, and the squeegee 82 is arranged in front of the support member 83.

[0191] In some embodiments, the fitting 81, the squeegee 82 and the support member 83 are integrally formed and connected.

[0192] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "mechanically coupled", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components. The mechanical coupling or coupling of two components includes direct coupling and indirect coupling. For example, direct fixed connection, connection through a transmission mechanism, etc. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0193] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0194] The above disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described above. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0195] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific method steps, features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific method steps, features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0196] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cleaning device, characterized in that, comprising: a rotary brush device, including a housing, a first rotary brush and a second rotary brush, at least part of a suction port is formed in the housing, and the first rotary brush and the second rotary brush are respectively configured to rotate relative to the housing; a collection device, communicating with the suction port; a negative pressure device, configured to drive an object to be cleaned to enter the rotary brush device through the suction port and output from the rotary brush device to the collection device, wherein, one ends of the first rotary brush and the second rotary brush are both suspended to form free ends; the free end of the first rotary brush and the free end of the second rotary brush are spaced apart, and both the first rotary brush and the second rotary brush include a roller body and a rubber brush, and the rubber brush is connected to the roller body.

2. The cleaning device according to claim 1, characterized in that, the first rotary brush and the second rotary brush are arranged along the rotation axis direction of the first rotary brush or the second rotary brush, such that there is a gap between the free end of the first rotary brush and the free end of the second rotary brush in the arrangement direction.

3. The cleaning device according to claim 2, characterized in that, the roller body of the first rotary brush and the roller body of the second rotary brush are spaced apart along the arrangement direction of the first rotary brush and the second rotary brush, and the rubber brush of the first rotary brush and the rubber brush of the second rotary brush are spaced apart in the arrangement direction of the first rotary brush and the second rotary brush.

4. The cleaning device according to claim 2, characterized in that, the gap includes a gradually changing gap or a uniform gap; or, the free end of the first rotary brush and the free end of the second rotary brush are both arranged corresponding to the middle position of the suction port.

5. The cleaning device according to claim 1, characterized in that, further comprising: a driving mechanism, connected to the housing and drivingly connected to the first rotary brush and the second rotary brush.

6. The cleaning device according to claim 5, characterized in that, the first rotary brush has opposite first and second ends, the second rotary brush has opposite third and fourth ends, the first end and the third end are respectively drivingly connected to the driving mechanism; the second end and the fourth end are respectively the free end of the first rotary brush and the free end of the second rotary brush, and are spaced apart to form a gap.

7. The cleaning device according to claim 5, characterized in that, the first rotary brush has opposite first and second ends, the second rotary brush has opposite third and fourth ends, the second end and the fourth end are respectively the free end of the first rotary brush and the free end of the second rotary brush, the first end and the third end are respectively drivingly connected to the driving mechanism, and the spacing distance between the first end and the third end along the axis direction of the first rotary brush is greater than the spacing distance between the second end and the fourth end along the axis direction of the first rotary brush.

8. The cleaning device according to claim 5, characterized in that, the driving mechanism includes: a first driving member, connected to the housing and drivingly connected to the roller body of the first rotary brush; a second driving member, connected to the housing and drivingly connected to the roller body of the second rotary brush.

9. The cleaning device according to claim 5, characterized in that, The driving mechanism includes: A driving member, the first rolling brush and the second rolling brush are drivingly connected to the same driving member.

10. The cleaning device according to claim 1, characterized in that the rubber brush is detachably connected to the roller body.

11. The cleaning device according to claim 1, characterized in that the rubber brush includes: A connecting body, connected to the roller body; A rubber strip, protruding from the connecting body.

12. The cleaning device according to claim 11, characterized in that the connecting body includes: A first connecting portion, connected to the roller body; A second connecting portion, connected to the first connecting portion and sleeved outside the first connecting portion, and the rubber strip protrudes from the second connecting portion.

13. The cleaning device according to claim 12, characterized in that the first connecting portion and the second connecting portion are integrally formed; and / or, the second connecting portion has flexibility or elasticity.

14. The cleaning device according to claim 12, characterized in that the first connecting portion is detachably connected to the roller body.

15. The cleaning device according to claim 12, characterized in that the first connecting portion is provided with a limiting structure, the roller body is provided with a matching structure, and the limiting structure and the matching structure are in limiting cooperation to limit the relative movement between the first connecting portion and the roller body.

16. The cleaning device according to claim 15, characterized in that the limiting structure includes a first limiting portion, the matching structure includes a first matching portion, and the first limiting portion and the first matching portion are in limiting cooperation to limit the circumferential relative movement between the first connecting portion and the roller body.

17. The cleaning device according to claim 16, characterized in that one of the first limiting portion and the first matching portion includes a clamping protrusion, and the other includes a clamping groove.

18. The cleaning device according to claim 15, characterized in that the limiting structure includes a second limiting portion, the matching structure includes a second matching portion, and the second limiting portion and the second matching portion are in limiting cooperation to limit the axial relative movement between the first connecting portion and the roller body.

19. The cleaning device according to claim 18, characterized in that one of the second limiting portion and the second matching portion includes a clamping protrusion, and the other includes a clamping groove.

20. The cleaning device according to claim 12, characterized in that the second connecting portion includes: A connecting sub-portion, sleeved outside the first connecting portion and radially spaced from the first connecting portion, and the rubber strip protrudes from the connecting sub-portion; A connecting rib, connecting the first connecting portion and the connecting sub-portion.

21. The cleaning device according to claim 20, characterized in that the number of the connecting ribs includes a plurality, and the plurality of connecting ribs are spaced apart along the circumferential direction of the roller body.

22. The cleaning device according to claim 20, characterized in that the shape of the connecting rib is curved; and / or, the connecting rib has flexibility or elasticity.

23. The cleaning device according to claim 20, characterized in that The radial stiffness of the connecting rib is less than the radial stiffness of the connecting sub - part and / or the radial stiffness of the first connecting part.

24. The cleaning device according to claim 11, wherein, The number of the rubber strips includes a plurality, and the plurality of rubber strips are convexly arranged on the connecting body at intervals along the circumferential direction of the roller body.

25. The cleaning device according to claim 1, wherein, The roller body includes a straight - cylindrical roller body; or, the roller body includes a conical roller body, and in the axial direction extending from the first end to the second end of the roller body, the cross - sectional area of the roller body decreases; or, The roller body includes a conical roller body, and in the axial direction extending from the first end to the second end of the roller body, the cross - sectional area of the roller body increases.

26. The cleaning device according to any one of claims 1 - 25, wherein, The rotary brush device further includes: A dirt scraping mechanism, connected to the housing, for scraping the objects to be cleaned on the surface to be cleaned, so as to reduce or avoid omission of the objects to be cleaned.

27. The cleaning device according to claim 26, wherein, The dirt scraping mechanism includes: A fitting, connected to the housing; A scraping strip, connected to the fitting, for contacting the surface to be cleaned; A support member, connected to the fitting, the support member is used for contacting the surface to be cleaned; the support member and the scraping strip are arranged at intervals along the advancing direction of the cleaning device, and the scraping strip is arranged in front of the support member.

28. The cleaning device according to claim 27, wherein, The fitting, the scraping strip and the support member are integrally formed and connected.

29. A rotary brush device, wherein, comprises: A housing; A first rotary brush, configured to be rotatable relative to the housing; A second rotary brush, configured to be rotatable relative to the housing; wherein, one end of both the first rotary brush and the second rotary brush is suspended, forming a free end; the free end of the first rotary brush and the free end of the second rotary brush are arranged at intervals, and both the first rotary brush and the second rotary brush include a roller body and a rubber brush, and the rubber brush is connected to the roller body.

30. The rotary brush device according to claim 29, wherein, The first rotary brush and the second rotary brush are arranged along the rotation axis of the first rotary brush or the second rotary brush, so that there is a gap between the free end of the first rotary brush and the free end of the second rotary brush in the arrangement direction.

31. The rotary brush device according to claim 30, wherein, The roller body of the first rotary brush and the roller body of the second rotary brush are arranged at intervals along the arrangement direction of the first rotary brush and the second rotary brush, and the rubber brush of the first rotary brush and the rubber brush of the second rotary brush are arranged at intervals along the arrangement direction of the first rotary brush and the second rotary brush.

32. The rotary brush device according to claim 30, wherein, The gap includes a gradually changing gap or a uniform gap; or, At least part of a suction port is formed on the housing, and the free end of the first rotary brush and the free end of the second rotary brush are both arranged corresponding to the middle position of the suction port.

33. The rotary brush device according to claim 29, wherein, further includes: A driving mechanism, connected to the housing and drivingly connected to the first roller brush and the second roller brush.

34. The roller brush device according to claim 33, wherein, the first roller brush has opposite first and second ends, the second roller brush has opposite third and fourth ends, the first end and the third end are respectively drivingly connected to the driving mechanism; the second end and the fourth end are respectively the free ends of the first roller brush and the second roller brush, and are spaced apart to form a gap.

35. The roller brush device according to claim 33, wherein, the first roller brush has opposite first and second ends, the second roller brush has opposite third and fourth ends, the second end and the fourth end are respectively the free ends of the first roller brush and the second roller brush, the first end and the third end are respectively drivingly connected to the driving mechanism, and the spacing distance between the first end and the third end along the axis direction of the first roller brush is greater than the spacing distance between the second end and the fourth end along the axis direction of the first roller brush.

36. The roller brush device according to claim 33, wherein, the driving mechanism includes: a first driving member, connected to the housing and drivingly connected to the roller body of the first roller brush; a second driving member, connected to the housing and drivingly connected to the roller body of the second roller brush.

37. The roller brush device according to claim 33, wherein, the driving mechanism includes: a driving member, and the first roller brush and the second roller brush are drivingly connected to the same driving member.

38. The roller brush device according to claim 29, wherein, the rubber brush is detachably connected to the roller body.

39. The roller brush device according to claim 29, wherein, the rubber brush includes: a connecting body, connected to the roller body; a rubber strip, protruding from the connecting body.

40. The roller brush device according to claim 39, wherein, the connecting body includes: a first connecting portion, connected to the roller body; a second connecting portion, connected to the first connecting portion and sleeved outside the first connecting portion, and the rubber strip protrudes from the second connecting portion.

41. The roller brush device according to claim 40, wherein, the first connecting portion and the second connecting portion are integrally formed; and / or, the second connecting portion has flexibility or elasticity.

42. The roller brush device according to claim 40, wherein, the first connecting portion is detachably connected to the roller body.

43. The roller brush device according to claim 40, wherein, the first connecting portion is provided with a limiting structure, the roller body is provided with a matching structure, and the limiting structure and the matching structure are in limiting cooperation to limit the relative movement between the first connecting portion and the roller body.

44. The roller brush device according to claim 43, wherein, the limiting structure includes a first limiting portion, the matching structure includes a first matching portion, and the first limiting portion and the first matching portion are in limiting cooperation to limit the circumferential relative movement between the first connecting portion and the roller body.

45. The roller brush device according to claim 44, characterized in that, one of the first limiting portion and the first mating portion includes a clamping protrusion, and the other includes a clamping groove.

46. The roller brush device according to claim 43, characterized in that, the limiting structure includes a second limiting portion, the mating structure includes a second mating portion, and the second limiting portion is in limiting cooperation with the second mating portion to limit the axial relative movement between the first connecting portion and the roller body.

47. The roller brush device according to claim 46, characterized in that, one of the second limiting portion and the second mating portion includes a clamping protrusion, and the other includes a clamping groove.

48. The roller brush device according to claim 40, characterized in that, the second connecting portion includes: a connecting sub-portion, sleeved outside the first connecting portion, radially spaced from the first connecting portion, and the rubber strip protrudes from the connecting sub-portion; a connecting rib, connecting the first connecting portion and the connecting sub-portion.

49. The roller brush device according to claim 48, characterized in that, the number of the connecting ribs includes a plurality, and the plurality of connecting ribs are circumferentially spaced along the roller body.

50. The roller brush device according to claim 48, characterized in that, the shape of the connecting rib is curved; and / or, the connecting rib has flexibility or elasticity.

51. The roller brush device according to claim 48, characterized in that, the radial stiffness of the connecting rib is less than the radial stiffness of the connecting sub-portion and / or the radial stiffness of the first connecting portion.

52. The roller brush device according to claim 39, characterized in that, the number of the rubber strips includes a plurality, and the plurality of rubber strips protrude from the connecting body circumferentially spaced along the roller body.

53. The roller brush device according to any one of claims 29-52, characterized in that, the roller body includes a straight cylindrical roller body; or, the roller body includes a conical roller body, and in the axial direction extending from the first end to the second end of the roller body, the cross-sectional area of the roller body decreases; or, the roller body includes a conical roller body, and in the axial direction extending from the first end to the second end of the roller body, the cross-sectional area of the roller body increases.

54. The roller brush device according to claim 29, characterized in that, the roller brush device further includes: a dirt scraping mechanism, connected to the housing, for scraping the objects to be cleaned on the surface to be cleaned, so as to reduce or avoid omission of the objects to be cleaned.

55. The roller brush device according to claim 54, characterized in that, the dirt scraping mechanism includes: a fitting, connected to the housing; a scraping strip, connected to the fitting, for contacting the surface to be cleaned; a support member, connected to the fitting, the support member is used for contacting the surface to be cleaned; the support member and the scraping strip are spaced along the advancing direction of the cleaning device, and the scraping strip is arranged in front of the support member.

56. The roller brush device according to claim 55, characterized in that, the fitting, the scraping strip and the support member are integrally formed and connected.

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